CTE is a progressive degenerative disease of the brain common in athletes with a history of repetitive brain trauma. CTE has been known to affect boxers since the 1920s. With the recent passing of NFL great and CTE sufferer, Frank Gifford, more concern than ever is being focused on solutions.
Cannabis (marijuana) offers hope though it's presently a banned substance on the NFL's drug policy. Cannabis has been shown to protect the brain from head trauma and also assist with recovery. In fact, the US Government holds a patent for marijuana as a neuroprotectant.
The patent (#6630507) is titled “Cannabinoids as Antioxidants and Neuroprotectants” and was awarded to the Department of Health and Human Services (HHS) in October 2003.